The release cue!

The “break” or “release” cue is a word we teach the dog to indicate that the exercise we have asked them to do is now over. It means that we (dog and handler) are finished working for right now and that the dog is on his or her own time.
Examples of good “break” words are: all-done, break, release,. The break cue indicates to the dog that he has finished an exercise like a sit or a search).
The release word is not a cue for playtime. The release word just means that the exercise we have asked the dog to do is over but it isn’t necessarily playtime.